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Do Indoor Saunas Cause Mold?

Indoor saunas do not cause mold inside your home; however, they can create the right conditions for mold growth if heat and humidity aren’t managed correctly. However, proper sauna maintenance usually ensures that mold is not an issue.

How Does Mold Grow?

Mold is usually the result of excess heat and humidity/moisture in the home. Moist rooms that lack proper ventilation are often at the highest risk of mold growth. If your walls or floors remain damp for a few days, mold spores can reproduce, leading to visible growth in a matter of days. 

Why Saunas Are Usually Not the Culprits Behind Mold

  • Saunas produce dry heat and will not generate steam or humidity.
  • SaunaFin saunas are designed with proper ventilation for optimal airflow, which helps eliminate excess moisture from your sauna.
  • Most of SaunaFin’s indoor saunas are made from high-quality cedar wood, which is highly resistant to both moisture and mold.

How To Prevent Mold

Mold caused by a sauna is very rare unless you use sauna rocks/steam generators often, or if your room lacks ventilation. In this case, the following prevention measures can help reduce mold risks:

  • Ensure you add a vapour barrier to your sauna upon installation.
  • Leave your sauna door open after each session so that it can air out. This will prevent moisture from staying trapped inside.
  • Clean and wipe down your sauna regularly. If you use steam in your sauna, you must wipe away any condensation or moisture after each session.
  • Ensure the room your indoor sauna is in has proper ventilation.

Shop quality, mold-resistant saunas from SaunaFin!